Track-lighting fixture



FIG. 1 is a front elevational view of a track-lighting fixture showingour new design;

FIG. 2 is a bottom, front, and right side perspective view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a right side elevational view thereof; and,

FIG. 6 is a left side elevational view thereof.

The broken-line disclosure in the views of an adaptor is forillustrative purposes only and forms no part of the claimed design.

CLAIM The ornamental design for a track-lighting fixture, as shown anddescribed.